lighting products analysis
Date:2011-09-01 12:34
unlight exposure to the earth from morning till night, not every time we feel the sunlight, it is definitely natural white. Because it is also subject to varying thickness of the absorption and refraction of clouds, reflection interference, forms a natural white light of various spectral composition and the ratio will change. Morning and evening sunlight, but also subject to heavy cloud cover, light refraction angle and the serious impact of the golden sun and thus this time period, its color in
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